| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2019, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <linux/export.h> |
| #include <linux/notifier.h> |
| #include <linux/input/touch_event_notify.h> |
| |
| static BLOCKING_NOTIFIER_HEAD(touch_notifier_list); |
| |
| int touch_event_register_notifier(struct notifier_block *nb) |
| { |
| return blocking_notifier_chain_register(&touch_notifier_list, nb); |
| } |
| EXPORT_SYMBOL(touch_event_register_notifier); |
| |
| int touch_event_unregister_notifier(struct notifier_block *nb) |
| { |
| return blocking_notifier_chain_unregister(&touch_notifier_list, nb); |
| } |
| EXPORT_SYMBOL(touch_event_unregister_notifier); |
| |
| void touch_event_call_notifier(unsigned long action, void *data) |
| { |
| blocking_notifier_call_chain(&touch_notifier_list, action, data); |
| } |
| EXPORT_SYMBOL(touch_event_call_notifier); |
| |